In Logic Pro X, select the track with the Camel Audio Alchemy plug-in.

In the channel strip for the selected track, place the pointer over the instrument slot containing Camel Audio Alchemy, click the pop-up menu arrows that appear to the right, then choose Alchemy from the top level of the menu. Logic Pro X Alchemy automatically retains your Camel Audio Alchemy settings.

Because of updates to Logic Pro X Alchemy controls and features, patches might not sound exactly the same as they did in Camel Audio Alchemy. Also, automation doesn't carry over to Logic Pro X Alchemy.